TOOLS & CHARTS ―
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Clear Aperture
CONTROLS: Portion of the optically active surface subject to specification
RELATED TERMS: Coating Aperture, Full Aperture, Effective Aperture
UNITS: Linear units
SPECIFICATIONS MUST CONTAIN: Enough information to locate clear aperture relative to physical features
OPTIMAX PREFERRED SPECIFICATION: Fixed mechanical values
REASONS: Easier to interpret
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OF THE MANUFACTURING TOLERANCE CHART
Learn from the Experts
Freeform Optics Technical Paper
Towards understanding tool influence function (TIF) spots during hemispherical sub-aperture tool polishing
The key mechanisms & predictive models that determine the spatially dependent material removal rate (called the tool influence function (TIF) spots) during hemispherical sub-aperture tool polishing on flat & curved fused silica glass are presented.